Руководство По Проектированию для Cisco DNCS System Release 2.7 3.7 4.2
4000358 Rev B
About This Guide
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About This Guide
Introduction
Cisco® has designed the Explorer
®
The cable modem interoperates with a CableLabs®-qualified DOCSIS 1.0 and 1.1
Cable Modem Termination System (CMTS). The modem provides broadband
network operators with a cost-effective way to offer standards-based, high-speed
data services to their subscribers. The Explorer 4200 Home Gateway supports
DOCSIS 1.0.
Digital Home Communication Terminal (DHCTs)
4200 Home Gateway to include the new Data-Over-Cable Service Interface
Specifications (DOCSIS®) cable modem. With its integrated DOCSIS cable modem,
the DHCT can serve as a gateway that can provide high-speed Internet access to a
computer.
Purpose
This application guide describes how you can set up DOCSIS in your Cisco digital
cable network, also known as your Digital Broadband Delivery System (DBDS). This
guide provides guidelines for provisioning DOCSIS and recommendations for
updating the security of your DBDS network. You will learn about DOCSIS-capable
DHCTs and their three modes of operation. In addition, you will learn about the
network interfaces such as the CMTS, Dynamic Host Control Protocol (DHCP)
server, QAM modulators, and QPSK modulators and demodulators that are used to
support DOCSIS in a DBDS environment. Information is provided to help you set up
the network interfaces within the DBDS so that the Digital Network Control System
(DNCS) communicates with the DOCSIS-capable DHCTs.
Audience
This guide is written for DNCS operators, billing system operators, and IT system
administrators. The operators or administrators must already be knowledgeable in
general DBDS operation and functionality, CMTS, and DHCP server operation and
functionality, as well as network addressing and subnetting schemes.